Chaplet



April .F. L. SPENCER ET AL I 1,709,497

CHAPLET Filed March 20, 1926 N V EN TORS Banillf. fence I 6G," A ORNEYS Patented Apr. 16,1929.

UNITED STATES v 1,709,497 PATENT OFFICE.

ERIENn L. SPENCER AND THOMAS JONES, or ROCHESTER, NEW YORK.

cnAPnE'r.

Application filedv March 20,1926. 7 Serial No. 96,300.

Our present invention relates to molding and more particularly to chaplets such as are used for supporting-a core in a mold and it has for itsobject to provide a simple construction of metallic chaplet which can beproduced at a low cost and which will have certain advantages not hitherto present in chaplets of this kind. The improvements are directed toward providing means whereby 10 the-chaplet may form a homogeneous part of the casting even though it does not fuse completely when the metal is poured. To these and other ends the invention resides in certain improvements, and combinations of v parts all as will-be hereinafter more fully described, the novel features being pointed out in the claim at the end of the specification. 7

In the drawings: Figure 1 is a side elevation of one form of chaplet constructed in accordance with and illustrating one embodiment of our invention; 7

Figure 2 is a section on the line 22 thereof; 4

Figure 3 is an elevation of another form of chaplet embodying our invention and Figure 4 is a side elevation of still another form ofchaplet also embodying our invention.

Similar reference numerals throughout the several views indicate the same parts.

In the use of chaplets it not infrequently occurs that the chaplet is not completely fused by the molten metal with the result that it forms a blemish in the finished casting. With the ordinary chaplet, the failure to complete ly fuse during the pour results in the chaplet remaining loose in the casting so that while this owing to the fact that it has no holding means and the surrounding metal contracts so that it does not grip it closely.

In the practice of our present invention, we so form the chaplet that it is securely embedded in the metal regardless of whether or not it is perfectly fused and we so form it thatit may be riveted in the casting without danger of driving through in case it has not become melted in as it should.

The invention is applicable to chaplets of different kinds. In Figure 1, however, we have shown a chaplet of the general type disclosed in our prior Patent No. 1,539,881 of June 2, 1925and we will first describe our it can be riveted in place, it is difficult to do improvements in connectiontherewith. Re-V ferring specifically to Figure 1, 1 indicates the stem of the chaplet adapted to beanchored in themold and 2 the cap or head which supports the core. Ashoulder 3-limits the penetration of the stem 1 within the moldand hence, the metalline or the area within which the metal flows is comprised within the space indicated by the dotted lines A-A and B.-B. The portion 4 of the Chaplet between the shoulder 3 and the cap'2 is the portion that is contacted by the molten metal and is supposed-to befused-thereby. Instead of mak ing this body or connecting portion 4 straight or cylindrical as usual, we give it the curvature shown whereby it 1s smaller at the waist or center than it is at either of its ends connecting to the cap 2 or the shoulder 3. Inasmuch as the casting, when poured, occupies the space between the lines AA and B-B, any failure to completely fuse the chaplet in this area will result in the latter being imbed- I dad in the casting in such manner that it can- 1 not be removed longitudinally and if it is not perfectly fused,'it is nevertheless locked in place and its ends can be riveted down without danger of it being driven through. Ad-

ditionally, it must be borne in mind that as the molten metal is poured in, it has a rolling motion and presents a curved advancing sur- I face to the chaplet. It therefore rollsinto intimate contact with the connecting portion 4 and closely surrounds thesame' and if its temperature is such that it fails to fuse it, it,nevertheless, closely encloses it. At any rate, the shape of the body portion 4 of the chaplet is such that it is anchored in thecasting and cannot be dislodged, and its ends may be riveted over with the greatest ease to firmly embed it in the casting.

7 In Figure 3,. the Same construction is shown in connection with a Chaplet of another type embodying a head 2 and a long stem 1 without the use of a shoulder piece 3 as in Figure 1, the length of the stem 1 being relied upon to holdit in the mold- In this form,.

the metal line is "between the cap 2 on the line A and the portion of the stem on the line B The connecting portion 4 is, as before, curved so that it is narrow at the Waist, I

as before, for the purposes specified.

In Figure 4 wehave shown a more familiar type of chaplet embodying a head 2 and a base 3", one adapted to support the core and "the other adapted to rest against themold,

the connecting portion 4* being restricted at its center as in the other cases.

In all of these forms it will be noted that the counecting portion 4, 4301' 4 is of such a shape that it cannot be driven through the casting or fall therefrom and is locked therein in such a Way that it may be easily riveted in place in case the result of the cast is such that the chaplet is not completely fused.

The chaplet constructed in accordance with our present invention dos-s not increase the cost of production While it adds materially to the perfection of the casting and, as before stated, the methods employed in case a com- I plete fusion of the Chaplet during the pour is not effected.

e claim as our invention:

A chaplet embodying a head and a supporting; portion and having an intermediate body adapted to be surrounded and fused by the flowing metal, said body portion being enlarged at both its ends and having a restricted intermediate portion, the surface of which is circular on every cross-section and concave in continuous curvature in section in every longitudinal plane. 

